Granted Patent
Utility
US 4,265,683 · App. 06/010,112
Development of grain-oriented iron sheet for electrical apparatus
Inventors:
Richard D. Blaugher, Richard H. Hopkins
Patented Case
View Patent ↗
Granted: May 5, 1981
Filed: Feb 7, 1979
Inventors
Richard D. Blaugher
Richard H. Hopkins
Assignee (at issue)
Westinghouse Electric Company LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.